Best configuration of my.cnf for make fast Magento navigation

I have a Magento 1.7 version site with 7000 configurable products. Site navigation is slow. From the moment I click on a site link to when the address in the url bar changes several seconds pass. Configuring the file my.cnf I have had improvements. But I think the configuration is not optimal. What do you suggest to edit in my my.cnf file considering that I have a VPS with the following features? CPU: ten cores Intel® Xeon® E5-2620v3, E5-2630v4 or 4114 processor 50 GB RAM (guaranteed) 1200 GB disk space (100% SSD) 100% SSD disk space UNLIMITED traffic! 1 Gbit / s port DDoS protection (details) This is my.cnf configuration: #query_cache_size = 50G #table_open_cache = 2000 #innodb_adaptive_flushing = 0 #innodb_adaptive_hash_index = 0 #innodb_autoextend_increment = 1000 #innodb_buffer_pool_instances = 64 #innodb-defragment=1 open_files_limit = 2000 innodb_io_capacity = 2000 innodb_read_io_threads = 64 innodb_thread_concurrency = 0 innodb_write_io_threads = 64 innodb_buffer_pool_size = 5G innodb_thread_concurrency = 20 innodb_flush_log_at_trx_commit = 2 thread_concurrency = 30 table_open_cache = 2000 thread_cache_size = 32 #table_cache = 2000 query_cache_size = 30M query_cache_limit = 1G join_buffer_size = 3G tmp_table_size = 2G key_buffer = 70M innodb_autoextend_increment=512 max_allowed_packet = 1G max_heap_table_size = 1G read_buffer_size = 50M read_rnd_buffer_size = 50M bulk_insert_buffer_size = 50M myisam_sort_buffer_size = 50M myisam_max_sort_file_size = 10G #myisam_max_extra_sort_file_size = 5 myisam_repair_threads = 1 innodb_buffer_pool_instances = 5