TocMail accesses your email accounts through "IMAP servers." Yahoo's IMAP servers are much slower than other email providers such as Apple's iCloud and Google's gmail.
We recommend that you switch to a service provider that uses high-speed IMAP servers. You will then find the speed of TocMail's cloud app to be comparable to natively installed apps.
Through other email service providers, you can have unparalleled anti-phishing security along with high-speed email access as well.